Thanks, what did the above poster mean when he said granfix reacts with gypsum?Prime it and tile it, don't worry. 🙂
I'm worried cos i am a leaseholder and there is a crawlspace behind the kitchen with timbers really close to the gypsum and I am worried the granfix will rot the gypsum and the timbers in the crawlspace and the timbers do not belong to me, I will be in breach of my lease and could get in to big trouble if I rot thier timbers or ruin the gypsum, cos I cannot afford to get it replastered, as there is loads of jobs needing doing in the kitchen, ie some other tiles are on top of blown plaster on the adjacant brick wall.
I plan to get some fix and grout from screwfix to put the tiles back on. thanks